CN103979283A - Belt conveyor protection device for coal mine - Google Patents
Belt conveyor protection device for coal mine Download PDFInfo
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- CN103979283A CN103979283A CN201410239705.9A CN201410239705A CN103979283A CN 103979283 A CN103979283 A CN 103979283A CN 201410239705 A CN201410239705 A CN 201410239705A CN 103979283 A CN103979283 A CN 103979283A
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Abstract
The invention belongs to the technical field of conveyor protection devices and particularly relates to a belt conveyor protection device for a coal mine. The belt conveyor protection device for the coal mine comprises a core mine intrinsic safety type programmable logic controller and a signal detection unit connected with the programmable logic controller. The signal detection unit comprises sensors and amplified phones. The sensors comprise the coal piling sensor, the mine smoke sensor, the speed detection sensor, the mine temperature sensor, the mine belt deviation sensor and the mine intrinsic safety type longitudinal tear sensor. The amplified phones comprise the mine intrinsic safety type sudden stop amplified phone, the mine intrinsic safety type pull rope sudden stop amplified phone A and the mine intrinsic safety type pull rope sudden stop amplified phone B. The belt conveyor protection device for the coal mine has the advantages that programming can be conducted on site, the number of input / output points can be increased, work is reliable, operation is convenient, expansion is flexible, the design is flexible, protective functions are complete, display information is abundant, and control interlocking and protection functions of related devices can be achieved reliably and conveniently.
Description
Technical field
The invention belongs to conveyer fender guard technical field, be specifically related to belt conveyer for coal mine fender guard.
Background technology
The work under bad environment of belt conveyer for coal mine, complicated dangerous, the workflow waterline of whole equipment is huge, maintenance workload while breaking down is large, time-consuming taking a lot of work adjusted in interlock, need to carry out real-time monitoring to the state of the numerous operation parts of whole equipment, potential failure factor is reacted in time, make the coordinated operation normally of each parts of equipment, this is needed to the special large amount temperature that is connected with, smog, the sensors such as sideslip, electromagnetic valve, the fender guard of the charged action equipment such as vac switch detects in real time and protects it, the normal operation of guarantee equipment, each sensor is monitored each parts of conveyer in time in the time that fault occurs, sensor sends signal to fender guard main frame by what monitor, main frame has more relevant processing, send corresponding warning simultaneously, its detection mode of general existing belt conveyer for coal mine fender guard is single, device entirety does not fixedly have to expand alerting ability, that interlocks is functional not strong, operation inconvenience, in use there is certain limitation.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned defect; provide there is field-programmable, I/O count can expand, easy to operate, expand belt conveyer for coal mine fender guard flexibly; the present invention is applicable to have under coal mine the environment of gas and coal dust explosion hazard; for electrical control, monitoring and the integrated protection of Belt Conveyors Underground Coal Mine; device flexible design, defencive function is complete, rich display information, can reliably and easily realize control interlocking and the defencive function of relevant device.
The present invention for the technical scheme that its technical matters of solution adopts as follows:
Belt conveyer for coal mine fender guard, comprise Operations Analysis and the connected detecting signal unit of core, described motion control unit is can be to the mining intrinsic safety type programable controller of the automatic control of external device and unit control, mining intrinsic safety type programable controller gives the power supply of this belt conveyer for coal mine fender guard with mine flameproof and intrinsic safety type power supply box and power connection, described detecting signal unit comprises sensor and hands free telephone, sensor comprises coal piling sensor, mine smoke sensor, speed detection sensor, mining temperature sensor, mining adhesive tape misalignment sensor and Mine-used I. S device for sensing longitudinal leakage, hands free telephone comprises the anxious hands free telephone that stops of Mine-used I. S, the anxious hands free telephone A that stops of Mine-used I. S stay cord, the anxious hands free telephone B that stops of Mine-used I. S stay cord, described mining intrinsic safety type programable controller port is laid with 8 core mine-shield communication cable main lines along conveyer, main line end arranges the anxious hands free telephone A that stops of described Mine-used I. S stay cord in conveyer tail place, suddenly stop hands free telephone is arranged on corresponding conveyer head place on main line with connecting cable to described Mine-used I. S, described Mine-used I. S stay cord suddenly stops hands free telephone B and is arranged on uniformly in main line with connecting cable, in the anxious main line that stops hands free telephone B front and back correspondence of described Mine-used I. S stay cord, be also provided with uniformly the anxious lock-switch of closing down of the Mine-used I. S stay cord connecting with connecting cable, described mining adhesive tape misalignment sensor is connected with the anxious lock-switch of closing down of connecting cable and Mine-used I. S stay cord with Mine-used I. S device for sensing longitudinal leakage, described Mine-used I. S is anxious stops being also provided with on the main line between hands free telephone and mining intrinsic safety type programable controller Mine-used I. S I/O extender, described speed detection sensor, mining temperature sensor is connected with Mine-used I. S I/O extender with connecting cable, described coal piling sensor, mine smoke sensor is connected with mining intrinsic safety type programable controller with connecting cable, described main line tail end is also provided with mine explosion-suppression essential safe type change-box, described mine flameproof and intrinsic safety type power supply box is also connected with explosion-proof type magnetic valve for mine with connecting cable, described main line and each latch switch, between hands free telephone, connect with 8 core connectors.
Described coal piling sensor setting is in adhesive tape unloading place of conveyer head or head coal bunker, described mine smoke sensor is arranged on conveyer main transmission drum top, described speed detection sensor is arranged on belt below on conveyer, described mining temperature sensor is arranged on pyrotoxin 10-15mm place, the described mining adhesive tape misalignment sensor being connected with the anxious lock-switch of closing down of Mine-used I. S stay cord is two and is arranged on conveyer both sides, and respectively arrange a pair ofly at head, tail, described Mine-used I. S device for sensing longitudinal leakage is arranged on conveyer belt below.
Described mining intrinsic safety type programable controller is established with the guidance panel of Chinese Liquid Crystal Display, acoustic-optic alarm.
The invention has the beneficial effects as follows: adopt such scheme, the guidance panel of mining intrinsic safety type programable controller of the present invention can be programmed according to actual conditions, guidance panel is multiple functional, there is stronger flexible expansion, two kinds of modes of mining intrinsic safety type programable controller are that automatic control mode and unit mode mutually combine, two kinds of modes can be in conjunction with co-controlling also job control alone, Mine-used I. S I/O extender is timely current control inputs mouth state, delivery port state is controlled corresponding output port after sending mining intrinsic safety type programable controller to and receiving mining intrinsic safety type programable controller order, each sensor detects belt conveyer working part everywhere in time, and the information detecting is fed back to mining intrinsic safety type programable controller, the control signal of being tackled according to detection delivering by controller is to ensure the normal trouble free service of conveyer entirety and each parts, and the acoustic-optic alarm of mining intrinsic safety type programable controller starts warning automatically in the time that fault occurs, Chinese Liquid Crystal Display also will show the position of et out of order simultaneously, convenient maintenance in time, the anxious hands free telephone that stops of Mine-used I. S, the anxious hands free telephone A that stops of Mine-used I. S stay cord, Mine-used I. S stay cord suddenly stops the anxious people such as lock-switch that close down of hands free telephone B and Mine-used I. S stay cord and not only can converse, get ready, also on off control and the anxious lock of closing down on the spot, the anxious lock of closing down of stay cord, the unit controls such as interlocked control output, multiple functional, easy to operate, each hands free telephone is connected with main line with 8 core connectors with latch switch, the convenient place needing that is arranged on is so that control, possesses stronger alerting ability, each inter-module of fender guard coordinates performance function flexibly, and two kinds of modes are also deposited and are made the present invention possess perfect control and protection function.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the present invention is aforesaid will be become apparent with other object, feature and advantage.
Fig. 1 is overall construction drawing of the present invention.
Fig. 2 is principle of the invention block diagram.
Detailed description of the invention
Belt conveyer for coal mine fender guard as shown in Figure 1, formed with the detecting signal unit being connected with cable with its port by mining intrinsic safety type programable controller 1, mining intrinsic safety type programable controller 1 gives the power supply of this belt conveyer for coal mine fender guard with mine flameproof and intrinsic safety type power supply box 2 and power connection, input power is 127V AC, detecting signal unit comprises sensor and hands free telephone, sensor comprises the coal piling sensor 9 being arranged in adhesive tape unloading place of conveyer head or head coal bunker, be arranged on the mine smoke sensor 10 of conveyer main transmission drum top, be arranged on the speed detection sensor 11 of belt below on conveyer, be arranged on the mining temperature sensor 12 at pyrotoxin 10-15mm place, be arranged on the mining adhesive tape misalignment sensor 14 of conveyer both sides and be arranged on the Mine-used I. S device for sensing longitudinal leakage 15 below belt on conveyer, wherein mining adhesive tape misalignment sensor 14 is at head, tail respectively arranges a pair of, hands free telephone comprises the anxious hands free telephone 4 that stops of Mine-used I. S, the anxious hands free telephone A7 that stops of Mine-used I. S stay cord, the anxious hands free telephone B6 that stops of Mine-used I. S stay cord, the port of mining intrinsic safety type programable controller 1 is provided with the 8 core mine-shield communication cable main lines 16 of laying along conveyer, Mine-used I. S stay cord is anxious to stop hands free telephone A7 and can be arranged on the conveyer tail place that main line end is corresponding and have the anxious lock of closing down of stay cord, interlocked control output, get ready, the functions such as speech, keep in communication when communication again easily for the chain output to lower complete equipment, suddenly stop hands free telephone 4 is arranged on corresponding conveyer head place or other places that need to control on main line 16 to Mine-used I. S, there is on off control and the anxious lock of closing down on the spot, call, the function such as get ready, be used for facilitating long-range unit control conveyor apparatus, Mine-used I. S stay cord suddenly stops hands free telephone B6 and is arranged on uniformly in main line 16, suddenly stop hands free telephone B6 generally fills one every 200 meters to Mine-used I. S stay cord, when installation, user should be according to the anxious mounting hole size of stopping hands free telephone B6 of Mine-used I. S stay cord, self-control adapter plate, be fixed on the sidepiece of carrying frame with hook bolt, then Mine-used I. S stay cord suddenly being stopped to hands free telephone B6 is fixed on adapter plate, anxious 5 of the lock-switchs of closing down of Mine-used I. S stay cord are arranged on the anxious main line 16 that stops hands free telephone B6 front and back correspondence of Mine-used I. S stay cord uniformly, there is anxious lock and the anxious lock function of closing down of button of closing down of stay cord, generally be arranged in the frame of conveyer pedestrian one side, using cable as stay cord, between latch switch, be generally spaced apart 75 to 100 meters, when installation, user should be according to the mounting hole size of this switch, self-control adapter plate, be fixed on the sidepiece of carrying frame with hook bolt, then switch is fixed on adapter plate.Facilitate the urgent locking of control convenience, mining adhesive tape misalignment sensor 14 is all connected with the anxious lock-switch 5 of closing down of Mine-used I. S stay cord with Mine-used I. S device for sensing longitudinal leakage 15, the information detecting is fed back to mining intrinsic safety type programable controller 1 by sensor, mining intrinsic safety type programable controller 1 is sending the anxious lock-switch 5 realizations control automatically of closing down of signal control Mine-used I. S stay cord, Mine-used I. S is anxious stops being also provided with on the main line 16 between hands free telephone 4 and mining intrinsic safety type programable controller 1 Mine-used I. S I/O extender 3, speed detection sensor 11, mining temperature sensor 12 is also connected with Mine-used I. S I/O extender 3, like this can be in time current control inputs mouth state, delivery port state is controlled corresponding output port after sending mining intrinsic safety type programable controller 1 to and receiving mining intrinsic safety type programable controller 1 order, realize automatically and controlling, coal piling sensor 9, mine smoke sensor 10 is connected with mining intrinsic safety type programable controller 1 again, the general hanging of coal piling sensor 9 being arranged in adhesive tape unloading place of conveyer head or head coal bunker is unloaded into place at head adhesive tape, or in the coal bunker of head, normal coal stream movement can not percussion coal piling sensor 9, but in the time of unloading point generation coal piling, the long-pending coal being detained should be able to touch coal piling sensor 9, make its run-off the straight, when installation, ringbolt subsidiary in available sensors is directly installed, also can adopt steel rope or chain suspension, during for feed bin, preferably be arranged on the place that falling material does not directly clash into, or add protective tube on sensor top, when installation of sensors near bulkhead local time, energy action message should ensure sensor perturbations from the distance of bulkhead time, for sensor also can be moved in less space, should shorten the length of suspended chain as far as possible, increase the length of one section of rigidity part or shortening feeler lever on top, the mine smoke sensor 10 that is arranged on conveyer main transmission drum top is generally hung above main transmission drum, according to on-the-spot wind direction, to be slightly advisable near lower air port, hanging place do not have serious trickle and dust.The speed detection sensor 11 that is arranged on belt below on conveyer is generally arranged on the below of belt, because belt is larger in when starting heavy duty and underloading adhesive tape heave amplitude, power wheel and adhesive tape for fear of sensor depart from, should be installed as near near cylinder, so that speed transmission wheel heave amplitude is unlikely excessive, or be close to reversing drum and install, when installation, to adjust angle and position, when fully loaded and unloaded with guarantee adhesive tape, in the scope of permission sideslip, sensor power wheel and adhesive tape close contact.Mining temperature sensor 12 is contained in pyrotoxin 10 to 15mm places, mine flameproof and intrinsic safety type power supply box 2 places are also provided with explosion-proof type magnetic valve for mine 13, itself and mining temperature sensor 12 UNICOMs work, mining temperature sensor 12 detects bowl temperature and sends mining intrinsic safety type programable controller 1 to by frequency signal, and mining intrinsic safety type programable controller 1 judges that Current Temperatures controls watering explosion-proof type magnetic valve for mine 13 and control watering.The Mine-used I. S device for sensing longitudinal leakage 15 that is arranged on the mining adhesive tape misalignment sensor 14 of conveyer both sides and be arranged on belt below on conveyer is generally to be installed as suitable near latch switch, when installation, certain attention erecting frame can affect travelling apron in no instance, in order to avoid scratch adhesive tape.Main 16 line tail ends are provided with mine explosion-suppression essential safe type change-box 8, power supply is provided to the equipment such as distant acquisition sensor, between main line 16 and each latch switch, hands free telephone, be all connected with 8 core connectors, easy to connect, mining intrinsic safety type programable controller 1 is established with the guidance panel of Chinese Liquid Crystal Display, acoustic-optic alarm, in the time that fault occurs and alarm show that on telltale position of fault is convenient to Quick overhaul.The control core that mining intrinsic safety type programable controller 1 is this fender guard, it completes the equipment control of this fender guard and the demonstration of protection and various states, mining intrinsic safety type programable controller 1 is to realize by the break-make of contact to the control of external device, be switching value control, switching value output is divided into the output of intrinsic safety switching value and the output of non-peace switching value, and mining intrinsic safety type programable controller 1 divides two kinds to the mode of external device: automatic control mode and unit mode, by feeding back to mining intrinsic safety type programable controller 1 with the timely monitor signal of upper sensor, mining intrinsic safety type programable controller 1 calculation process spreads out of control signal control convenience again to realize automatic control, realize long-range unit control by hands free telephone and latch switch.
This belt conveyer for coal mine fender guard model is KHP257, wherein K be expressed as mining, the meaning of H for protection, P represents belt, 257 for registration sequence number, the environment for use that meets this belt conveyer for coal mine fender guard is:
A) bar pressure: (86～106) kPa;
B) be applicable under coal mine in-5 DEG C～+ 40 DEG C environment;
C) surrounding air relative humidity is not more than 95% (+25 DEG C time)
D) environmental noise: be not more than 75dB (A);
E) without the occasion of significantly vibrating and impacting;
F) without the place of destroying the aggressive fume insulating;
G) under coal mine, there is the place of methane and coal-dust explosion;
H) without dripping or liquid intrusion.
The basic function of this belt conveyer for coal mine fender guard is:
Device can provide speech along the line and communicating by letter of getting ready, contact function, gets ready and alarm voice sound level signal is not less than 90dB (A); Device can provide intrinsic safety, non-peace without the input and output of soruce contact type switching value signal, and possesses the anxious lock function of closing down of stay cord; Device has early warning cycling start function, and early warning time length is not less than 10s, and shows each equipment state along the line; In the time having fault to occur, device can provide warning, liquid crystal display fault and equipment state, and output signal sudden stop; Protection feature: speed protection; Coal piling protection; Sideslip protection; Overtemperature watering protection; Smog protection; Tear protection; Two-way emergency stop switch; Its analog input error speed in frequency amount signal is input as: frequency input signal: 0Hz～1000Hz (corresponding speed displayed value: 0m/s～5m/s), pulse width is not less than 0.3ms, analog input transmission error is not more than 5.0% (F.S.), temperature frequency amount signal input frequency input signal: 200Hz～1000Hz (corresponding temperature displayed value: 0 DEG C～80 DEG C), pulse width is not less than 0.3ms, and analog input transmission error is not more than 2.5% (F.S.).
Its principle of work as shown in Figure 2; the work of fender guard is made up of processes such as signal detection, logic operation, control outputs, and the realization of these processes realizes with the detecting signal unit being connected with cable with its port automatically by mining intrinsic safety type programable controller 1.
The signal detection process of this belt conveyer for coal mine fender guard is:
First signal is input to controller inside, controller is according to incoming signal and user program execution result, and master cock amount output signal, completes control function, realizes start and stop on the spot and protection.Switching value signal has: anxious close down lock and start and stop on the spot.Switching value signal is the break-make by contact, enters the input port that is configured to switching value of controller or intrinsic safety controller.When junction closure, send into a low level signal (" 0 " signal) to inside by optocoupler; Whether when contact disconnects, send into a high level signal (" 1 " signal) to inside, state is sent to controller by intrinsic safety controller, arranged according to high and low level signal and programming by controller, differentiate and have the anxious lock of closing down to occur.
The installation of this belt conveyer for coal mine fender guard:
The concrete layout of fender guard equipment by user according to the situation; conventional layout and installation method: controller, intrinsic safety controller, change-box and electromagnetic starter etc. should be placed on the concentrated place of head electromechanical appliance, preferably have a special control chamber.Controller should be in strict accordance with the corresponding wiring of drawing with the wiring of each equipment room, and wiring should firmly not get loose, and burr does not have.Controller needs outside that 127V AC power supplies is provided.Driving surface signal along the line is all connected in controller by 8 core mine-shield communication cables, and between each latch switch, connection is with 8 core connectors to inserting, and concrete wiring is with reference to accompanying drawing 1.
The corresponding model of parts of this belt conveyer for coal mine fender guard is: KXH16 mining intrinsic safety type programable controller, DXJ127/16 mine flameproof and intrinsic safety type power supply box, the anxious hands free telephone that stops of KTK16 (C) Mine-used I. S, the anxious hands free telephone that stops of KTK16 (B) Mine-used I. S stay cord, the anxious hands free telephone that stops of KTK16 (A) Mine-used I. S stay cord, the anxious lock-switch of closing down of KHJ16 Mine-used I. S stay cord, KJU16 Mine-used I. S I/O extender, GWD80 mining temperature sensor, GUJ19 coal piling sensor, GQL0.1 mine smoke sensor, KG5007A speed detection sensor, GEJ20 mining adhesive tape misalignment sensor, DFB-20/10 electromagnetic valve, GVY-2K Mine-used I. S longitudinal rupture of adhesive tape sensor.
The use method of operation of this belt conveyer for coal mine fender guard:
Automatically control: this is the using method that this fender guard is recommended, in this manner, controller participates in monitoring and controls, and realizes perfect control and protection function.Concrete operations are as follows: enter main menu-operation-automatically; drive conveyer; start-stop knob on front panel " is opened " to shelves by " stopping " rotation direction; conveyer spoon bar must be all at low level, and then starts starting, as fender guard does not have fault; now conveyer starts starting automatically; if device has parking class fault, this Time Controller is reported to the police and is shown, conveyer fail to start.As in starting or in service, there is any parking class fault, all will stop immediately conveyer, automatically show the fault occurring simultaneously and report to the police.Automatically starting process: first advance notice, conveyer spoon bar all should be at low level simultaneously.After having predicted, Oil pump electrical machinery starts, and after Oil pump electrical machinery starts, starts main motor No. 1.(as long as conveyer spoon bar has one not at low level, just can not start main motor) time delay (3～4) S, starts No. 2 main motor; Survey No. 1 main motor switch contact return signal (junction closure) simultaneously.As not closed in contact, liquid crystal display " 1# electrical fault ", reports to the police and shuts down, and as junction closure, continues.Time delay (3～4) S, surveys the main motor switch return signal of 2#, and as not closed in contact, liquid crystal display " 2# electrical fault ", reports to the police and shut down; As junction closure, 1, No. 2 conveyer spoon bar is carried out to Loading Control, until conveyer spoon bar is to a high position simultaneously.Conveyer spoon bar is after a high position, and belt normally moves by command speed.Above starting process is by procedure auto-control, without manual operation.7.1.2. normally stop conveyer: the start-stop knob on front panel " is stopped " to shelves by " opening " rotation direction, carry out parking order, now conveyer ramp to stop.Orderly shutdown process: first shut down tail feeder, time delay a period of time (time of run of material from belt machine end to head), draw after sky until coal on belt, each conveyer spoon bar is off-load (pushing away conveyer spoon bar to low level) simultaneously, until conveyer spoon bar is to low level; Then stop main motor, docking process finishes.Above docking process is by procedure auto-control, without manual operation.Suddenly stop conveyer: this fender guard is in each stage of conveyer operation, skid as occurred, when the parking class fault such as coal piling, sideslip, overtemperature watering, smog, locking or press " suddenly stopping " button, all will carry out sudden stop; In the anxious stopping time, when stopping main motor, conveyer spoon bar pushed to low level always, controlled band-type brake.In adhesive tape starting and docking process, can not arrive a high position or low level as conveyer spoon bar because of mechanical breakdown time, controller is by automatic time delay processing, delay time to and conveyer spoon bar does not still arrive position, automatically stop the control of conveyer spoon bar, and as the fault handling of parking class, to prevent the damage of conveyer spoon bar motor.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention openly in scope, still can do some corrections or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (3)
1. belt conveyer for coal mine fender guard, comprise Operations Analysis and the connected detecting signal unit of core, it is characterized in that: described motion control unit is can be to the mining intrinsic safety type programable controller of the automatic control of external device and unit control, mining intrinsic safety type programable controller gives the power supply of this belt conveyer for coal mine fender guard with mine flameproof and intrinsic safety type power supply box and power connection, described detecting signal unit comprises sensor and hands free telephone, sensor comprises coal piling sensor, mine smoke sensor, speed detection sensor, mining temperature sensor, mining adhesive tape misalignment sensor and Mine-used I. S device for sensing longitudinal leakage, hands free telephone comprises the anxious hands free telephone that stops of Mine-used I. S, the anxious hands free telephone A that stops of Mine-used I. S stay cord, the anxious hands free telephone B that stops of Mine-used I. S stay cord, described mining intrinsic safety type programable controller port is laid with 8 core mine-shield communication cable main lines along conveyer, main line end arranges the anxious hands free telephone A that stops of described Mine-used I. S stay cord in conveyer tail place, suddenly stop hands free telephone is arranged on corresponding conveyer head place on main line with connecting cable to described Mine-used I. S, described Mine-used I. S stay cord suddenly stops hands free telephone B and is arranged on uniformly in main line with connecting cable, in the anxious main line that stops hands free telephone B front and back correspondence of described Mine-used I. S stay cord, be also provided with uniformly the anxious lock-switch of closing down of the Mine-used I. S stay cord connecting with connecting cable, described mining adhesive tape misalignment sensor is connected with the anxious lock-switch of closing down of connecting cable and Mine-used I. S stay cord with Mine-used I. S device for sensing longitudinal leakage, described Mine-used I. S is anxious stops being also provided with on the main line between hands free telephone and mining intrinsic safety type programable controller Mine-used I. S I/O extender, described speed detection sensor, mining temperature sensor is connected with Mine-used I. S I/O extender with connecting cable, described coal piling sensor, mine smoke sensor is connected with mining intrinsic safety type programable controller with connecting cable, described main line tail end is also provided with mine explosion-suppression essential safe type change-box, described mine flameproof and intrinsic safety type power supply box is also connected with explosion-proof type magnetic valve for mine with connecting cable, described main line and each latch switch, between hands free telephone, connect with 8 core connectors.
2. belt conveyer for coal mine fender guard according to claim 1, it is characterized in that: described coal piling sensor setting is in adhesive tape unloading place of conveyer head or head coal bunker, described mine smoke sensor is arranged on conveyer main transmission drum top, described speed detection sensor is arranged on belt below on conveyer, described mining temperature sensor is arranged on pyrotoxin 10-15mm place, the described mining adhesive tape misalignment sensor being connected with the anxious lock-switch of closing down of Mine-used I. S stay cord is two and is arranged on conveyer both sides, and at head, tail respectively arranges a pair of, described Mine-used I. S device for sensing longitudinal leakage is arranged on belt below on conveyer.
3. belt conveyer for coal mine fender guard according to claim 1, is characterized in that: described mining intrinsic safety type programable controller is established with the guidance panel of Chinese Liquid Crystal Display, acoustic-optic alarm.
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| CN201410239705.9A CN103979283B (en) | 2014-05-30 | 2014-05-30 | Belt conveyer for coal mine fender guard |
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| CN104483881A (en) * | 2014-12-23 | 2015-04-01 | 天津通联电气有限公司 | Mining explosive intrinsically safe controller |
| CN104483882A (en) * | 2014-12-23 | 2015-04-01 | 天津通联电气有限公司 | Underground coal mine communication control device |
| CN106444512A (en) * | 2016-10-21 | 2017-02-22 | 北京和利时智能技术有限公司 | Mine intrinsic security type programmable controller |
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| CN108689105A (en) * | 2018-05-28 | 2018-10-23 | 安徽工程大学 | A kind of coal mine is driven to coal belt feeder and monitor control system |
| CN110092160A (en) * | 2019-05-09 | 2019-08-06 | 中煤科工集团上海有限公司 | A kind of long range belt feeder intelligent protection system |
| CN110902310A (en) * | 2019-11-18 | 2020-03-24 | 安徽东启电子科技有限公司 | Mining wireless conveyor protection centralized control system |
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